Plow.



P. EWALD.

PLOW.

APPLICATION FILED AUG. 1o. 1911.

COLUMBIA PLANoaRAPH co.,WASHINnTnN, D. c.

P. EWALD.

PLOW.

APPLICATION FILI-:D AuG.I0, 1911.

4 SHEETS-SHEET 3.

@Home/13 It is readily apparent that the movement of the axle will adjust the wheel or rather the body portion of the device to different angular positions, that is when the body portion is in the position shown in Fig. 4,y

the wheel is in its lowerniost position in relation thereto. I have provided eiiicient means whereby the body portion may be lowered so that it is below the center of the wheel thus enabling the operator to adjust one wheel to its lowermost position while the center of the other wheel is above the center position, consequently allowing the vdevice to run upon irregular ground without moving the blade of the plow from its usual substantially vertical position. IVith -this in view, I have provided upon the axle 9, a pivot lever 19, the latter having a handle 20 pivoted thereon as shown at 21, for operating a vertically extending rod 22 carryinga pawl 23. rIhe pawl 23 is, as is clearly shown in engagement with the teeth upon i the rack 11, consequently holding the body "nection therewith portion at certain times in rigid relation with the axle and its attachment.

For the purpose of elevating and depressing the stud or crank 12, I have pivoted upon the lever 19, an arm 24 as shown at 25, the latter being also connected to the stud as shown at 26. Upon reference to Fig. 3,

"of the drawings, it will be recognized that the stud is shown in a lowered position in relation to the body portion however if the lever 19 is moved to a vertical position it will be recognized that the stud will be raised, consequently lowering the body portion in relation to the wheel.

For the purpose of more readily assuring the efficient operation of the crank, I have provided upon the axle 9, a coil spring 27,

`one end of which vis fast upon the bearing 8, the other end being connected to an adjustable collar 2S as is clearly shown. Further I have provided a second substantially U-shaped bracket 29, the ends of which are secured to the first mentioned bracket as shown at 30 and 31. It will be recognized, that the bracket 29 connects the ends of the supporting bracket consequently greatly reinforcing` the same and assuring the dura.-

bility of the device.

Piv'oted upon the body portion 1, asshown ',at43`2, is a bell-crank lever 33 one end of the latter being bent at right angles as shown at 34 to form a supporting member 35. This supporting member 35, provides the main supporting structure for the second axle supporting the other wheel. With this in view I have provided upon the member 35, a depending bracket 36, the latter having conthrough the medium of a sleeve 37. The bracket 36 supports, as is clearly "shown an axle 38, the latter being received into the hub 39 of the wheel 40.

` I'Iere a bearing 41 is provided which is similar to the bearing 16, and it is thought that a detail description of its construction would be superfluous.

For normally holding the bracket 36 in a certain position, I have provided thereon a hook 42 which has engagement therewith one end of a coil spring 43, the other end of the latter being secured to ahook 44, carried upon J@he member 29, as shown at 45. A second bell-crank lever 46 is provided and pivoted upon the body portion l, as shown at 47, one of its endscarrying a segmental rack 48 which is fast upon the supporting member 35. A lever, 49 is loosely mounted upon the supporting member 35 and has pivotally mounted thereon as shown at 50 a handle 51, the latter having connection with a depending rod 52 which carries a pawl 53 for engagement with the segmental rack ther this lever is provided with a quadrantal shaped arm 54, the latter being secured thereto as shown at 55, its other end having engagement with the axle 38, as shown at 56. By this arrangement it will be recognized that as the lever 49 is rocked to different positions, the body portion of the device will be raised and lowered in relation to the wheel 40, thereby serving the purpose hereinbefore set forth.

From the foregoing it will now be appreciated that the operator, when at his post of duty upon the device, can easily manipulate jthe levers 49 and 19 to raise and lower the body portion at opposite sides, thereby providing a means, as above described for holding the plow in its usual substantially vertical position when the device is traveling overV irregular ground.

A plow beam 57 is provided, the forward end ofJ which is secured by Vany suitable means to a substantially U-shaped bracket '59, carried upon the forward end of the body vportion 1, its rear end carrying a plow blade '60. connection with the plow beam, intermediate its ends, whereby it Vmay be raised and lowered according to the will of the operator.

48. Fur- Means have been provided for` ,The forward extremities ofthe bell-crank levers 46 and 33 respectively have pivotalV lconnection as shown at 65 with pairs o-f normally downwardly projecting arms 66 and 67. Further bearings 68 lare provided upon the frame work of` the device over Y whichis journaled a bar 69, oneend of the latter being bent Yas shown at 70 to form a in lFig. 3,

downwardly projecting finger for pivotal engagement with the arm 67 as shown at 71. An adjustable depending lug 72 is provided upon the bar 69,which has pivotal engagement with the arm 66, as shown at 73 whereby when the bar 69 is rotated, the bellcranlz levers will be rocked simultaneously. For the purpose ot holding the bar 69 in normal position, a. coil spring 7a is provided thereon, oneA end of which is secured to one ofthe bearings 68 while its other end is fast to an adjustable collar 7 5 on the bar, the collar being held in a normally locked position in relation thereto through the medium of a set screw 76.

Upon reference to the drawings, it will be recognized that the bar 69 projects beyond one side of the supporting irame 1. Upon this projecting end is provided an angularly bent lever 77, the latter having engagement with the bar at an intermediate portion, and bemg held in rigid relation therewith through the medium of a bearing 78.' Provided near the extremities ci this lever are angularly projecting foot engaging members 7 9.and 80, the latter serving as means whereby the operator may manipulate the lever in an efficient manner.

' lt will now be recognized that when the lever is in the position shown in Fig. 3, the plow blade is held out ot contact with the ground, as the supportingmember 35 is in its uppermost position in relation to the body portion. `lrlowever, it will be recognized that if the lever 77 is operated in such a manner as to roclr the bell-crank levers 33 and 46 respectively, the plow may be lowered in relation to the ground.` For normally holding the lever 77 in the 4position shown l have provided thereon a catch 81 pivoted as shown aat-S2, the catch' having a tooth 83 tor engagement with a projecting step 84. Means have now been provided for operating this catch so that the operator of the machine may lower the plow when it is desired. With this in view, I have provided upon the lever 77, a pivot foot pedal 85, the latter being-secured thereto as shown at 86 and carrying a depending lug 87 for engagement with a downwardly projecting rod Slidably mounted upon the lever 77 through the medium of a bearing 89 is a link 90, the latter being held normally in a downward position through the medium of a coil spring 91. This pawl has engagement with the catch 81 by such means as shown at 92 whereby when the toot pedal 85 is depressed the catch will be drawn out of engagement with the step 8a. The operation of this part of the device is as follows: lThe device is in its normal position as shown at Fig.' 3, the plow blade 60l being out of engagement with the ground. lt it is desired to lower the blade however, the operator by use of his foot manipulates the foot Vpedal consequently drawing the catch 81 out of engagement with the step 811. 7When this operation occurs, the upper end or the lever 77 is moved downwardly consequently manipulating the bell-crank levers 253 and 16 respectively so that the supporting member 35 is lowered, consequently lowering the plow beam and blade. TWhile this operation does not materially ei'ifect the raising and lowering of the body, the body is slightly raised when the parts are in this position.

As set forth above, l have provided in connection with the plow eillcient means for operating the draft attachment of the device to conform with the adjustment oil the body portion in relation to the wheels. lt will be readily seen that when one side of the body portionis materially higher than the other, the tongue oi3 the vehicle would naturally be higher upon one horse than the other. To obviate this ditliculty, and to provide means for adjusting the tongue so that it is in relatively the same position to each horse I have provided the following mechanism.

Having one end secured to the extension 2 of the body portion as shown at 93 is a transversely projecting bar 9i, the latter being bent as shown at to provide supporting means for a segmental rack 96, the latter being secured thereto as shown at 97. lim-ther the end ot the bar 94 is bent at right angles to the portion 9:3 and secured to body portion 1, as shown at 98 and continued to form the step 8-1.

1-1 pair of tongue supporting members 99 and are provided, upon the extension 2 and secured thereto as shown at 101. rlhe upper ends of the supporting members 99 and 100 are spaced apart from each other and have journaled transversely therethrough a pin 102. rllhe pin 102 as is shown pivotally supports a tongue 103 which as is obvious is of the ordinary form.

For the purpose of connection with one end of a substantially bell-crank lever 104: pivoted upon the extensions 2 as shown at 105, l have provided the tongue 103 with slidably projecting fingers 106, the latter having connection with the tongue 103 as shown at 107 and to the bell-crank lever as shown at 108. The other end of the bellcrank lever has pivoted thereto as shown at 109 an arm 110.

For the purpose of operating the arm 110, and consequently moving the tongue laterally, l have pivoted upon the segment 96, as shown at 111, an operating lever 112, the latter having a handle 113 pivoted thereon tor engagement with a downwardly projecting rod 114, the latter having connection with a pawl 115 which is slidably mounted in a bracket 116, as is clearly shown. For the purpose of normally holding the pawl 115 in engagement with the teeth, I have provided a 'coil spring 117 which has one endsecured to the bracket 116, its other end being secured as shown at 118. The arm 110 having connection with the operating lever assures the positive operation of the tongue during the movement of the lever 112 consequently greatly adding to the etliciency of the device.

Provided upon the extensions 102, and supported by a lug 119 is a curved arm 120, the latter coperating with a slot in the end of the tongue whereby the latter is guided in its transverse movement upon the device.

rJChe greatest of stress is laid upon the simplieity and eiliciency of the dra't't adjusting mechanism, inasmuch as its particular use in connection with the device more readily assures the positive operation of the latter.

Such changes as are permissible by the subjoined claims may be resorted to, if occasion require, without departing from the spirit and scope or' my invention.

Having thus fully described my invention, what l claim as new and desire to secure by Letters Patent is 1. In a device of the character described, a. body portion, an axle carried by said body portion, a part of said axle bent to form a crank, a wheel carried upon said crank, means carried by said axle and having engagement with said crank whereby said bot y portion may be raised and lowered in relation thereto, a second axle, a bracket carried upon said axle, a means lier supporting said bracket, a bell crank lever pivoted upon said body portion Yand having connection with the bracketv supporting means, a means carried by the bracket supporting means and having engagement With 40 said second mentioned axle whereby said body portion may be adjusted in relation to said bracket supporting means'and means for operating said bell crank lever. 1

i2'. ln a device of thevcharacter described, 45 a body portion, apair of wheels supporting the same, a means for raising and lowering said body portion, a bar journaled over said body portion and terminating at one end in a linger, a coil spring mounted upon said bar as a means for holding the same in normal position, an arm secured to said bar, a plurality of bell crank Vlevers pivotally mounted upon said body portion, plurality of arms pivotally connecting one of said bell crank levers with Vthe said finger, a plurality or' arms connecting another of said bell crank levers with the iirst mentioned arm and the last mentioned bell crank lever terminating in a supporting means Jor one of said Wheels, an adjustable bracket mounted upon said supporting means for the reception of a plow beam, a FJ shaped bracket extending downwardly Jfrom the forward end of said body portion for the reception of one end of the plow beam, a plow blade secured to the other' end el said plow beam and a lever `secured to the other end oit said bar as a means for raising and lowering the plow beam as and for the purpose set forth and described.

ln testimony whereoi2 l aliix my signature in presence of two witnesses.

PAUL EWALD.

Witnesses XVM. Srm'r'rennnn, B. G. GIBSON.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

